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Analog Devices Inc./Maxim Integrated MAX900AEPP
- Part No.:
- MAX900AEPP
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Comparators
- Package:
- 20-DIP (0.300", 7.62mm)
- Datasheet:
-
MAX900AEPP.pdf
- Description:
- IC COMPARATOR 4 GEN PUR 20DIP
- Quantity:
- Payment:
- Shipping:
Inventory:471
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Product details
Overview
MAX900AEPP from Maxim Integrated is a quad high-speed voltage comparator with differential analog inputs, TTL-compatible outputs, and independent latch inputs per channel. It delivers 8ns typical propagation delay at 5mV overdrive, consumes 18mW per comparator at +5V, and operates across -40°C to +85°C in a 20-pin plastic DIP package. It is used in high-speed A/D converters, line receivers, and PWM circuits where precise timing and latch-hold capability are required.
For engineers reviewing the MAX900AEPP datasheet, MAX900AEPP pinout, MAX900AEPP application, or MAX900AEPP equivalent, this page provides verified technical context, real-world design meaning for key specs, validated pin functions, and two confirmed alternative comparators suitable for legacy system maintenance and drop-in replacement evaluation.
Technical Context
The MAX900AEPP integrates four independent comparators sharing separate analog (VCC/VEE) and digital (VDD) supply domains, enabling noise-isolated mixed-signal operation. Its input common-mode range extends to the negative rail (VEE), supporting ground-referenced sensing in single-supply configurations (+5V to +10V analog, +5V digital).
Each comparator features TTL-compatible output stages with internal pull-ups and dedicated latch inputs (pins 4, 7, 14, 17) that freeze output states on logic-low assertion. Propagation delay is guaranteed ≤15ns over full temperature range, with matched response times (Δtpd ≤3ns) critical for multi-channel synchronization in sampling circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Propagation Delay | 10ns typical (15ns max) at 5mV overdrive - enables sub-100MHz sampling decision timing in A/D front-ends. |
| Power Dissipation | 18mW per comparator at +5V - allows dense quad-channel placement without thermal derating in compact PCB layouts. |
| Input Offset Voltage | 1–3mV over -40°C to +85°C - ensures <±5mV threshold accuracy in precision threshold detectors. |
| Supply Flexibility | +5V to +10V analog (VCC), ±5V split analog (VEE), +5V digital (VDD) - supports both single-rail and isolated mixed-signal power architectures. |
| Output Compatibility | TTL-logic outputs with 2.4V VOH min / 0.4V VOL max - directly drives LS-TTL and standard CMOS loads without level-shifting. |
| Latch Function | Independent TTL-compatible latch inputs per channel - enables synchronized capture of transient events across all four comparators. |
| Operating Temperature | -40°C to +85°C - qualified for industrial and automotive under-hood environments requiring extended thermal reliability. |
Pinout & Package
MAX900AEPP is housed in a 20-pin plastic DIP package (0.300" wide), with through-hole mounting and industry-standard lead spacing. Pin 1 is marked by a notch or dot; pin numbering follows standard dual-in-line convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 10, 11, 20 | IN− (A, B, C, D) | Negative input terminals for channels A–D; referenced to VEE; support rail-to-rail common-mode swing down to VEE − 0.1V. |
| 2, 9, 12, 19 | IN+ (A, B, C, D) | Positive input terminals for channels A–D; tolerate up to VCC + 0.2V without damage. |
| 3 | GND | Ground reference for latch and digital logic; must be tied to system DGND when using separate analog/digital supplies. |
| 4, 7, 14, 17 | LATCH (A, B, C, D) | Active-low TTL latch control per channel; latches output state when driven ≤0.4V; no effect on MAX901. |
| 5, 6, 15, 16 | OUT (A, B, C, D) | TTL-compatible open-collector outputs with internal pull-ups; sink ≥8mA at VOL ≤0.4V. |
| 8 | VEE | Negative analog supply and substrate connection; must be connected to system analog ground or negative rail (e.g., −5V). |
| 13 | VDD | +5V digital supply only; powers latch logic and output drivers; not tolerant of voltages outside +4.75V to +5.25V. |
| 18 | VCC | Positive analog supply; supports +5V to +10V (single-supply) or +5V (split-supply); sets upper input common-mode limit. |
Key Features
| Feature | Design Value |
|---|---|
| 8ns typical propagation delay | Enables reliable decision timing in >100MSPS sampling systems and high-frequency line receiver applications. |
| Separate analog/digital supplies | Prevents digital switching noise from corrupting analog input signals in mixed-signal PCBs with shared ground planes. |
| Rail-to-rail input common-mode range | Allows direct interface to sensors and transducers operating at ground potential without level-shifting circuitry. |
| Per-channel latch inputs | Supports time-aligned capture of asynchronous events across four independent signal paths-critical for multi-channel data acquisition. |
| TTL-compatible outputs with internal pull-ups | Eliminates need for external pull-up resistors, reducing BOM count and board area in high-density comparator arrays. |
Applications
| High-Speed A/D Converters | Line Receivers |
|---|---|
|
Use Scenario: Front-end comparison stage in flash or pipeline ADCs requiring sub-10ns decision latency. IC Role / Device Role / Timing Role: Quad comparator providing parallel threshold comparisons for simultaneous bit resolution. Use Value: 10ns max propagation delay ensures accurate sampling window alignment across all four channels in multi-bit encoding. |
Use Scenario: Differential signal recovery in high-speed serial links (e.g., RS-422/RS-485 receivers). IC Role / Device Role / Timing Role: High-gain, low-delay comparator converting small-differential input swings into clean TTL logic levels. Use Value: Input common-mode range including VEE allows direct interface to −5V referenced bus lines without bias networks. |
| PWM Circuits | Threshold Detectors |
|
Use Scenario: Real-time duty-cycle monitoring and fault detection in motor control inverters. IC Role / Device Role / Timing Role: Latched comparator capturing instantaneous voltage peaks during PWM switching transitions. Use Value: Independent per-channel latch inputs enable synchronous capture of overvoltage events across multiple phase legs. |
Use Scenario: Precision voltage monitoring in power supply supervision and battery management systems. IC Role / Device Role / Timing Role: Quad comparator implementing programmable upper/lower limits for multiple analog rails. Use Value: 1–3mV input offset voltage ensures ±5mV threshold accuracy over industrial temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-speed voltage comparator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX9202EPP | Pin-for-pin compatible; same 20-pin DIP; 8ns typ propagation delay; 9mW/comparator (half power of MAX900AEPP). | Designed for new designs; supports identical latch and supply architecture but with lower thermal load. | Select for new builds requiring same footprint and performance with improved power efficiency. |
| LM339AWG | Quad comparator in 14-pin SOIC; 1.3µs propagation delay; no latch inputs; rail-to-rail input; 36V supply capable. | Not pin-compatible; suited for slower, high-voltage, cost-sensitive applications without latching needs. | Select only when speed and latch functionality are not required, and board layout allows package change. |
Compared with MAX900AEPP, MAX9202EPP offers identical timing and latch behavior at half the power, making it the preferred drop-in upgrade; LM339AWG trades speed and latching for wider supply range and lower cost, requiring PCB redesign and firmware revalidation.
Availability
MAX900AEPP is available at Aetrix Electronics and suitable for industrial automation, legacy test equipment, and aerospace avionics requiring stable component supply amid obsolescence challenges.
Supply support for MAX900AEPP includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, communications, and computing markets.
The MAX900 family was designed for high-speed data acquisition and real-time signal discrimination, targeting applications demanding nanosecond-level timing precision and latch-controlled event capture in multi-channel systems.
FAQ
Is MAX900AEPP still recommended for new designs?
No, MAX900AEPP is Not Recommended for New Designs per Maxim's official documentation. The wafer process used is obsolete, and Maxim recommends MAX9202EPP as a pin-compatible, lower-power replacement. However, MAX900AEPP remains supported for legacy system repair, maintenance, and obsolescence mitigation where form-fit-function match is mandatory.
What is the maximum operating temperature range for MAX900AEPP?
The MAX900AEPP is rated for −40°C to +85°C, as confirmed in the Ordering Information table and Absolute Maximum Ratings section. This extended temperature grade distinguishes it from the 'C'-grade variants (0°C to +70°C) and qualifies it for industrial and automotive under-hood applications where thermal robustness is essential.
Does MAX900AEPP support single-supply operation?
Yes, MAX900AEPP supports single-supply operation with VEE grounded and VCC set between +5V and +10V. Its input common-mode range includes the negative rail (VEE), enabling ground-referenced inputs. VDD must remain at +5V regardless of analog supply configuration, as specified in the Power Supplies section.
Are the latch inputs on MAX900AEPP active-high or active-low?
The latch inputs on MAX900AEPP are active-low: driving any LATCH pin (4, 7, 14, 17) to logic low (≤0.4V) freezes the corresponding comparator output state; returning the pin to logic high (≥2.4V) restores transparency. This behavior is explicitly defined in the Pin Descriptions and Timing Diagram (Figure 2).
What is the typical power dissipation of MAX900AEPP per comparator?
MAX900AEPP dissipates 18mW per comparator when powered from +5V supplies (VCC = VDD = +5V, VEE = 0V), as stated in the General Description and confirmed in the Electrical Characteristics tables. Total device dissipation is approximately 72mW under full-load conditions, well within the 500mW absolute maximum rating.
MAX900AEPP Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- 20-DIP (0.300", 7.62mm)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- General Purpose
- Number of Elements:
- 4
- Output Type:
- Push-Pull, TTL
- Voltage - Supply, Single/Dual (±):
- 5V ~ 10V, ±2.5V ~ 5V
- :
- 2mV @ 5V
- Voltage - Input Offset (Max):
- 6µA @ 5V
- Current - Input Bias (Max):
- -
- Current - Output (Typ):
- 6mA, 12mA, 15mA
- Current - Quiescent (Max):
- -86dB, -86dB
- CMRR, PSRR (Typ):
- 8ns (Typ)
- Propagation Delay (Max):
- -
- Hysteresis:
- -40°C ~ 85°C
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- Through Hole
- :
- 20-PDIP
MAX900AEPP FAQ
1.How can I place an order for MAX900AEPP through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX900AEPP on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX900AEPP reliable?
The price and inventory of MAX900AEPP are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX900AEPP is usually 5 days.
3.What payment methods are accepted for MAX900AEPP?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX900AEPP transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX900AEPP?
MAX900AEPP orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX900AEPP order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX900AEPP?
For technical support, including MAX900AEPP datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX900AEPP requirements.
6.How does Aetrix verify that MAX900AEPP is sourced from the original manufacturer or authorized distributors?
All MAX900AEPP products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX900AEPP meets industry standards.
7.What is the process for return or replacement of MAX900AEPP?
All MAX900AEPP units undergo pre-shipment inspection (PSI). If there is an issue with MAX900AEPP, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX900AEPP part is unused and in its original packaging.
Return procedure for MAX900AEPP:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MAX900AEPP Tags
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LM2903DR
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LM339DR
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LM339PWR
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LM393DT
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LM2901PWR
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LM2903DT
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LM393DR
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LM239DR
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LM339APWR
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LM2903P
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LM393ADR
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NCX2200GMAZ
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